If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
((1/8)*a-1)*((1/4)*a+1) = 0
(1/8*a-1)*(1/4*a+1) = 0
( 1/4*a+1 )
1/4*a+1 = 0 // - 1
1/4*a = -1 // : 1/4
a = -1/1/4
a = -4
( 1/8*a-1 )
1/8*a-1 = 0 // + 1
1/8*a = 1 // : 1/8
a = 1/1/8
a = 8
a in { -4, 8 }
| -5(4b+4)+(21b-1)=0 | | 9(z-4)-(3-7z)=15z | | 2b^2=5b+3 | | 1/5b+4=14 | | 6/30= | | 39=6x-3(-x+8) | | 1/5b | | (7/(3x+1))-(27x/(3x-1))=-9 | | 15k-4=41 | | 2x+1+1x=3 | | 0.20x+.05(20-x)=.10(37) | | 7(9)=(7*10)-(7*x) | | 1/5/2/3=x/4/5 | | -5g-g=-16 | | 2x+5+3x=1 | | 6d-5-(5-7d)= | | 7(z-5)+4z-2= | | 2/5d=35 | | 2+y-2y=-1 | | 2.568x=-12.42912 | | -(x-3)=2(3x+1) | | 6/7=x/28 | | 485/17=v | | 1/4b+5=13 | | 56-7x=2 | | 28n^4+16n-80n^2=0 | | 5/12=14/x | | 3=(x-2)+17 | | 480=x(x+4) | | 15x+6y+4y=-10 | | 2(-5+4)=-x | | X+6/5-2x+5/2 |